2866: The phenomenon of mirage is due to:

(a) Increased absorption of light by air at higher temperature

(b) Change in the refractive index of air with the change in temperature

(c) Total internal reflection

(d) Decreased absorption of light by air at higher temperature
2867: The President of Union of India has the same constitutional authority as the:

(a) British Monarch

(b) President of U.S.A.

(c) President of Egypt

(d) President of Russia
2868: A community of people called Manganiyars is well-known for their

(a) martial arts in North-East India
(b) musical tradition in North- West India
(c) classical vocal music in South India
(d) pietra dura tradition in Central India
2869: Panchayati Raj was first introduced in India in October, 1959 in

(a) Rajasthan
(b) Tamil Nadu
(c) Kerala
(d) Karnataka
2870: Which Mughal ruler introduced the Mansabdari system in India?

(a) Akbar

(b) Humayun

(c) Shahjahan

(d) Babar